Rafaelmedina23 Posted September 21, 2021 Share Posted September 21, 2021 Powerjack inverter 24 volts 8000 watts splitphases. The inverter transformer is over heating and turning off without any warning if fans are in automatic mode, if fans are switched on manually it won't shutdown. The other problem is that no warning are available even if battery is low it will keep on no alar and will go to 18 volts. Quote Link to comment Share on other sites More sharing options...
Rafaelmedina23 Posted September 22, 2021 Author Share Posted September 22, 2021 15 hours ago, Rafaelmedina23 said: Powerjack inverter 24 volts 8000 watts splitphases. The inverter transformer is over heating and turning off without any warning if fans are in automatic mode, if fans are switched on manually it won't shutdown. The other problem is that no warning are available even if battery is low it will keep on no alar and will go to 18 volts. Although they did not look so damaged, but I changed the mosfets and the driver board. Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted September 22, 2021 Share Posted September 22, 2021 20 hours ago, Rafaelmedina23 said: Powerjack inverter 24 volts 8000 watts splitphases. The inverter transformer is over heating and turning off without any warning if fans are in automatic mode, if fans are switched on manually it won't shutdown. The other problem is that no warning are available even if battery is low it will keep on no alar and will go to 18 volts. Have you checked the "battery voltage" adjustment knob--that is, if your inverter has it? I wouldn't be surprised if the battery voltage protection is completely disabled. Does the inverter beep several times at startup? Quote Link to comment Share on other sites More sharing options...
Rafaelmedina23 Posted September 22, 2021 Author Share Posted September 22, 2021 3 hours ago, Sid Genetry Solar said: Have you checked the "battery voltage" adjustment knob--that is, if your inverter has it? I wouldn't be surprised if the battery voltage protection is completely disabled. Does the inverter beep several times at startup? The only knob is the charger voltage, it doesn't beep only shutdown and then is a steady beep Quote Link to comment Share on other sites More sharing options...
Rafaelmedina23 Posted September 23, 2021 Author Share Posted September 23, 2021 The only knob is the charger voltage, it doesn't beep only shutdown and then is a steady beep Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted September 23, 2021 Share Posted September 23, 2021 Hmm. Sounding a bit like the thermal switch for the fan control isn't working? Maybe you can trace the wires and try to locate the thermal switch (it looks an awful lot like the MOSFETs actually, but it's a bimetallic thermal switch). Often covered in black goop, on top of the transformer. Quote Link to comment Share on other sites More sharing options...
Rafaelmedina23 Posted September 24, 2021 Author Share Posted September 24, 2021 Thermostat? Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted September 25, 2021 Share Posted September 25, 2021 21 hours ago, Rafaelmedina23 said: Thermostat? Depending on the inverter revision, there'll either be a mechanical bimetallic thermostat (TO-220 style package) on the transformer with wires going to the fans...OR...if the fans are plugged into the control board (v11 and newer I believe) it'll be controlled by the CPU. Quote Link to comment Share on other sites More sharing options...
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